protected void AsyncFileUploadCustomerAttachment_UploadedComplete(object sender, AjaxControlToolkit.AsyncFileUploadEventArgs e)
 {
     if (Convert.ToInt32(Session["UploadFileCountProspect"]) == 0)
     {
         string fileNameall = "";
         if (Convert.ToString(Session["ProspectAttachment"]) != null)
         {
             fileNameall = Convert.ToString(Session["ProspectAttachment"]);
         }
         string fileName = Path.GetFileName(AsyncFileUploadCustomerAttachment.FileName);
         fileName = Convert.ToString(DateTime.Now) + fileName;
         fileName = fileName.Replace("/", "");
         fileName = fileName.Replace(":", "");
         fileName = fileName.Replace(" ", "");
         AsyncFileUploadCustomerAttachment.SaveAs(Server.MapPath("~/UploadedFiles/" + fileName));
         if (Session["ProspectAttachment"] != null)
         {
             Session["ProspectAttachment"] = null;
             fileName = fileNameall + "," + fileName;
             Session["ProspectAttachment"] = fileName;
         }
         else
         {
             Session["ProspectAttachment"] = fileName;
         }
     }
     else
     {
         Session["UploadFileCountProspect"] = 0;
     }
 }
        protected void AsyncFileUploadCustomerAttachment_UploadedComplete(object sender, AsyncFileUploadEventArgs e)
        {
            string imageName = Path.GetFileName(AsyncFileUploadCustomerAttachment.FileName);

            if (File.Exists(Server.MapPath("~/UploadedFiles/") + imageName) == true)
            {
                File.Delete(Server.MapPath("~/UploadedFiles/") + imageName);
            }
            AsyncFileUploadCustomerAttachment.SaveAs(Server.MapPath("~/UploadedFiles/" + imageName));
            lnkDownload.Visible = true;
            lnkDownload.Text    = imageName;
        }